1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* $OpenBSD: db_usrreq.c,v 1.5 2001/11/06 19:53:18 miod Exp $ */
/*
* Copyright (c) 1996 Michael Shalayeff. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <ddb/db_var.h>
extern int securelevel;
int
ddb_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
int *name;
u_int namelen;
void *oldp;
size_t *oldlenp;
void *newp;
size_t newlen;
struct proc *p;
{
int error, ctlval;
/* All sysctl names at this level are terminal. */
if (namelen != 1)
return (ENOTDIR);
switch (name[0]) {
case DBCTL_RADIX:
return sysctl_int(oldp, oldlenp, newp, newlen, &db_radix);
case DBCTL_MAXWIDTH:
return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_width);
case DBCTL_TABSTOP:
return sysctl_int(oldp, oldlenp, newp, newlen, &db_tab_stop_width);
case DBCTL_MAXLINE:
return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_line);
case DBCTL_PANIC:
ctlval = db_panic;
if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &ctlval)) ||
newp == NULL)
return (error);
if (ctlval != 1 && ctlval != 0)
return (EINVAL);
if (ctlval > db_panic && securelevel > 1)
return (EPERM);
db_panic = ctlval;
return (0);
case DBCTL_CONSOLE:
ctlval = db_console;
if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &ctlval)) ||
newp == NULL)
return (error);
if (ctlval != 1 && ctlval != 0)
return (EINVAL);
if (ctlval > db_console && securelevel > 1)
return (EPERM);
db_console = ctlval;
return (0);
default:
return (EOPNOTSUPP);
}
/* NOTREACHED */
}
|
